MCP — The Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.
LLM — A large language model — the neural network behind tools like Claude and ChatGPT, trained on huge amounts of text to predict what comes next.
agent skill — A reusable instruction file that teaches an agent how to do one job well — the procedure, the tools, and what counts as done.
Why it matters
Gives usable mental models for MCPThe Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.Full definition → — tool skills an LLMA large language model — the neural network behind tools like Claude and ChatGPT, trained on huge amounts of text to predict what comes next.Full definition → installs and discovers, rather than an API you call — which clarifies when writing a server is worth it and what the protocol actually exchanges.